#include <bits/stdc++.h>
using namespace std;

int main() {
	long long N; cin >> N;
	vector<long long> A(N), B(N);
	for (int i = 0; i < N; i++) cin >> A[i];
	for (int i = 0; i < N; i++) cin >> B[i];

	vector<pair<int, char>> ans;
	for (int i = 0; i < N; i++) {
		if (A[i] > B[i]) {
			for (int j = 0; j < A[i] - B[i]; j++) ans.emplace_back(i, 'L');
		}
	}
	for (int i = N - 1; i >= 0; i--) {
		if (A[i] < B[i]) {
			for (int j = 0; j < B[i] - A[i]; j++) ans.emplace_back(i, 'R');
		}
	}

	cout << ans.size() << endl;
	for (int i = 0; i < ans.size(); i++) {
		cout << ans[i].first + 1 << " " << ans[i].second << endl;
	}
}